找出划线部分读音与其它三个不同的一项,将其字母填入题前的括号中。
( ) 1. A. head B. eat C. meat D. please
( ) 2. A. clock B. clean C. music D. nice
( ) 3. A. umbrella B. student C. music D. tube
( ) 4. A. hole B. box C. nose D. home
( ) 5. A. window B. flow C. flower D. yellow